[v2,1/2] remoteproc: Use u64 len for da_to_va
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Message ID 20200204143343.7011-1-cleger@kalray.eu
State New
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Series
  • [v2,1/2] remoteproc: Use u64 len for da_to_va
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Commit Message

Clément Leger Feb. 4, 2020, 2:33 p.m. UTC
With upcoming changes in elf loader for elf64 support, section size will
be a u64. When used with da_to_va, this will potentially lead to
overflow if using the current "int" type for len argument. Change
da_to_va prototype to use a u64 for len and fix all users of this
function.

Signed-off-by: Clement Leger <cleger@kalray.eu>
---
V2:
 - Change len type from int to u64

 drivers/remoteproc/imx_rproc.c           | 5 +++--
 drivers/remoteproc/keystone_remoteproc.c | 2 +-
 drivers/remoteproc/qcom_q6v5_adsp.c      | 2 +-
 drivers/remoteproc/qcom_q6v5_mss.c       | 2 +-
 drivers/remoteproc/qcom_q6v5_pas.c       | 2 +-
 drivers/remoteproc/qcom_q6v5_wcss.c      | 2 +-
 drivers/remoteproc/qcom_wcnss.c          | 2 +-
 drivers/remoteproc/remoteproc_core.c     | 2 +-
 drivers/remoteproc/remoteproc_internal.h | 2 +-
 drivers/remoteproc/st_slim_rproc.c       | 2 +-
 drivers/remoteproc/wkup_m3_rproc.c       | 2 +-
 include/linux/remoteproc.h               | 2 +-
 12 files changed, 14 insertions(+), 13 deletions(-)

Comments

Arnaud POULIQUEN Feb. 4, 2020, 4:27 p.m. UTC | #1
Hi Clément,

Is it v2 or V3? 
I also suggest you add a cover letter when you post more than one patch in a thread.

On 2/4/20 3:33 PM, Clement Leger wrote:
> With upcoming changes in elf loader for elf64 support, section size will
> be a u64. When used with da_to_va, this will potentially lead to
> overflow if using the current "int" type for len argument. Change
> da_to_va prototype to use a u64 for len and fix all users of this
> function.
> 
> Signed-off-by: Clement Leger <cleger@kalray.eu>
> ---
> V2:
>  - Change len type from int to u64
> 
>  drivers/remoteproc/imx_rproc.c           | 5 +++--
>  drivers/remoteproc/keystone_remoteproc.c | 2 +-
>  drivers/remoteproc/qcom_q6v5_adsp.c      | 2 +-
>  drivers/remoteproc/qcom_q6v5_mss.c       | 2 +-
>  drivers/remoteproc/qcom_q6v5_pas.c       | 2 +-
>  drivers/remoteproc/qcom_q6v5_wcss.c      | 2 +-
>  drivers/remoteproc/qcom_wcnss.c          | 2 +-
>  drivers/remoteproc/remoteproc_core.c     | 2 +-
>  drivers/remoteproc/remoteproc_internal.h | 2 +-
>  drivers/remoteproc/st_slim_rproc.c       | 2 +-
>  drivers/remoteproc/wkup_m3_rproc.c       | 2 +-
>  include/linux/remoteproc.h               | 2 +-
>  12 files changed, 14 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index 3e72b6f38d4b..7ec79be5eb5d 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -208,7 +208,7 @@ static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da,
>  	return -ENOENT;
>  }
>  
> -static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
> +static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
I wonder if you could use size_t instead?
Does it make sense for 32-bit system to have a physical address space higher?
it's an open question I won't pretend to have the answer...:)
 

>  {
>  	struct imx_rproc *priv = rproc->priv;
>  	void *va = NULL;
> @@ -235,7 +235,8 @@ static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
len type to update

Regards,
Arnaud
>  		}
>  	}
>  
> -	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%x va = 0x%p\n", da, len, va);
> +	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%llx va = 0x%p\n", da, len,
> +		va);
>  
>  	return va;
>  }
> diff --git a/drivers/remoteproc/keystone_remoteproc.c b/drivers/remoteproc/keystone_remoteproc.c
> index 5c4658f00b3d..25c01df47eba 100644
> --- a/drivers/remoteproc/keystone_remoteproc.c
> +++ b/drivers/remoteproc/keystone_remoteproc.c
> @@ -246,7 +246,7 @@ static void keystone_rproc_kick(struct rproc *rproc, int vqid)
>   * can be used either by the remoteproc core for loading (when using kernel
>   * remoteproc loader), or by any rpmsg bus drivers.
>   */
> -static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
> +static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>  {
>  	struct keystone_rproc *ksproc = rproc->priv;
>  	void __iomem *va = NULL;
> diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
> index e953886b2eb7..7518e67a49e5 100644
> --- a/drivers/remoteproc/qcom_q6v5_adsp.c
> +++ b/drivers/remoteproc/qcom_q6v5_adsp.c
> @@ -270,7 +270,7 @@ static int adsp_stop(struct rproc *rproc)
>  	return ret;
>  }
>  
> -static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
> +static void *adsp_da_to_va(struct rproc *rproc, u64 da, u64 len)
>  {
>  	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
>  	int offset;
> diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
> index 471128a2e723..248febde6fc1 100644
> --- a/drivers/remoteproc/qcom_q6v5_mss.c
> +++ b/drivers/remoteproc/qcom_q6v5_mss.c
> @@ -1148,7 +1148,7 @@ static int q6v5_stop(struct rproc *rproc)
>  	return 0;
>  }
>  
> -static void *q6v5_da_to_va(struct rproc *rproc, u64 da, int len)
> +static void *q6v5_da_to_va(struct rproc *rproc, u64 da, u64 len)
>  {
>  	struct q6v5 *qproc = rproc->priv;
>  	int offset;
> diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
> index db4b3c4bacd7..cf2cd609c90d 100644
> --- a/drivers/remoteproc/qcom_q6v5_pas.c
> +++ b/drivers/remoteproc/qcom_q6v5_pas.c
> @@ -159,7 +159,7 @@ static int adsp_stop(struct rproc *rproc)
>  	return ret;
>  }
>  
> -static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
> +static void *adsp_da_to_va(struct rproc *rproc, u64 da, u64 len)
>  {
>  	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
>  	int offset;
> diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c
> index f93e1e4a1cc0..3a6b82a16961 100644
> --- a/drivers/remoteproc/qcom_q6v5_wcss.c
> +++ b/drivers/remoteproc/qcom_q6v5_wcss.c
> @@ -406,7 +406,7 @@ static int q6v5_wcss_stop(struct rproc *rproc)
>  	return 0;
>  }
>  
> -static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, int len)
> +static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, u64 len)
>  {
>  	struct q6v5_wcss *wcss = rproc->priv;
>  	int offset;
> diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
> index dc135754bb9c..f893219e45a8 100644
> --- a/drivers/remoteproc/qcom_wcnss.c
> +++ b/drivers/remoteproc/qcom_wcnss.c
> @@ -287,7 +287,7 @@ static int wcnss_stop(struct rproc *rproc)
>  	return ret;
>  }
>  
> -static void *wcnss_da_to_va(struct rproc *rproc, u64 da, int len)
> +static void *wcnss_da_to_va(struct rproc *rproc, u64 da, u64 len)
>  {
>  	struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
>  	int offset;
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index 307df98347ba..9e6d3c6a60ee 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -185,7 +185,7 @@ EXPORT_SYMBOL(rproc_va_to_pa);
>   * here the output of the DMA API for the carveouts, which should be more
>   * correct.
>   */
> -void *rproc_da_to_va(struct rproc *rproc, u64 da, int len)
> +void *rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>  {
>  	struct rproc_mem_entry *carveout;
>  	void *ptr = NULL;
> diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
> index 493ef9262411..004867061721 100644
> --- a/drivers/remoteproc/remoteproc_internal.h
> +++ b/drivers/remoteproc/remoteproc_internal.h
> @@ -50,7 +50,7 @@ void rproc_exit_sysfs(void);
>  void rproc_free_vring(struct rproc_vring *rvring);
>  int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
>  
> -void *rproc_da_to_va(struct rproc *rproc, u64 da, int len);
> +void *rproc_da_to_va(struct rproc *rproc, u64 da, u64 len);
>  phys_addr_t rproc_va_to_pa(void *cpu_addr);
>  int rproc_trigger_recovery(struct rproc *rproc);
>  
> diff --git a/drivers/remoteproc/st_slim_rproc.c b/drivers/remoteproc/st_slim_rproc.c
> index 04492fead3c8..2fd14afb3157 100644
> --- a/drivers/remoteproc/st_slim_rproc.c
> +++ b/drivers/remoteproc/st_slim_rproc.c
> @@ -174,7 +174,7 @@ static int slim_rproc_stop(struct rproc *rproc)
>  	return 0;
>  }
>  
> -static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
> +static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>  {
>  	struct st_slim_rproc *slim_rproc = rproc->priv;
>  	void *va = NULL;
> diff --git a/drivers/remoteproc/wkup_m3_rproc.c b/drivers/remoteproc/wkup_m3_rproc.c
> index 3984e585c847..0e8082948489 100644
> --- a/drivers/remoteproc/wkup_m3_rproc.c
> +++ b/drivers/remoteproc/wkup_m3_rproc.c
> @@ -80,7 +80,7 @@ static int wkup_m3_rproc_stop(struct rproc *rproc)
>  	return 0;
>  }
>  
> -static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
> +static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>  {
>  	struct wkup_m3_rproc *wkupm3 = rproc->priv;
>  	void *va = NULL;
> diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
> index 16ad66683ad0..f84bd5fe0211 100644
> --- a/include/linux/remoteproc.h
> +++ b/include/linux/remoteproc.h
> @@ -374,7 +374,7 @@ struct rproc_ops {
>  	int (*start)(struct rproc *rproc);
>  	int (*stop)(struct rproc *rproc);
>  	void (*kick)(struct rproc *rproc, int vqid);
> -	void * (*da_to_va)(struct rproc *rproc, u64 da, int len);
> +	void * (*da_to_va)(struct rproc *rproc, u64 da, u64 len);
>  	int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
>  	int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc,
>  			  int offset, int avail);
>
Clément Leger Feb. 4, 2020, 5:10 p.m. UTC | #2
Hi Arnaud,

My bad, I thought it was only V1.
I will resend it as a V3 with a cover letter.

----- On 4 Feb, 2020, at 17:27, Arnaud Pouliquen arnaud.pouliquen@st.com wrote:

> Hi Clément,
> 
> Is it v2 or V3?
> I also suggest you add a cover letter when you post more than one patch in a
> thread.
> 
> On 2/4/20 3:33 PM, Clement Leger wrote:
>> With upcoming changes in elf loader for elf64 support, section size will
>> be a u64. When used with da_to_va, this will potentially lead to
>> overflow if using the current "int" type for len argument. Change
>> da_to_va prototype to use a u64 for len and fix all users of this
>> function.
>> 
>> Signed-off-by: Clement Leger <cleger@kalray.eu>
>> ---
>> V2:
>>  - Change len type from int to u64
>> 
>>  drivers/remoteproc/imx_rproc.c           | 5 +++--
>>  drivers/remoteproc/keystone_remoteproc.c | 2 +-
>>  drivers/remoteproc/qcom_q6v5_adsp.c      | 2 +-
>>  drivers/remoteproc/qcom_q6v5_mss.c       | 2 +-
>>  drivers/remoteproc/qcom_q6v5_pas.c       | 2 +-
>>  drivers/remoteproc/qcom_q6v5_wcss.c      | 2 +-
>>  drivers/remoteproc/qcom_wcnss.c          | 2 +-
>>  drivers/remoteproc/remoteproc_core.c     | 2 +-
>>  drivers/remoteproc/remoteproc_internal.h | 2 +-
>>  drivers/remoteproc/st_slim_rproc.c       | 2 +-
>>  drivers/remoteproc/wkup_m3_rproc.c       | 2 +-
>>  include/linux/remoteproc.h               | 2 +-
>>  12 files changed, 14 insertions(+), 13 deletions(-)
>> 
>> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
>> index 3e72b6f38d4b..7ec79be5eb5d 100644
>> --- a/drivers/remoteproc/imx_rproc.c
>> +++ b/drivers/remoteproc/imx_rproc.c
>> @@ -208,7 +208,7 @@ static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64
>> da,
>>  	return -ENOENT;
>>  }
>>  
>> -static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>> +static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
> I wonder if you could use size_t instead?

I wondered too but size_t is a unsigned int on 32 bits system. So if they load
a elf64 binary (which might be in 32bits zone), the segment size will be
a u64 type.

> Does it make sense for 32-bit system to have a physical address space higher?
> it's an open question I won't pretend to have the answer...:)

I agree that it does not make a lot of sense... But when we discussed it in
OpenAMP WG, it was mentionned that this should be supported. 

> 
> 
>>  {
>>  	struct imx_rproc *priv = rproc->priv;
>>  	void *va = NULL;
>> @@ -235,7 +235,8 @@ static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da,
>> int len)
> len type to update

I missed this one and I will double check all other callers

Thanks,

Clément. 

> 
> Regards,
> Arnaud
>>  		}
>>  	}
>>  
>> -	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%x va = 0x%p\n", da, len, va);
>> +	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%llx va = 0x%p\n", da, len,
>> +		va);
>>  
>>  	return va;
>>  }
>> diff --git a/drivers/remoteproc/keystone_remoteproc.c
>> b/drivers/remoteproc/keystone_remoteproc.c
>> index 5c4658f00b3d..25c01df47eba 100644
>> --- a/drivers/remoteproc/keystone_remoteproc.c
>> +++ b/drivers/remoteproc/keystone_remoteproc.c
>> @@ -246,7 +246,7 @@ static void keystone_rproc_kick(struct rproc *rproc, int
>> vqid)
>>   * can be used either by the remoteproc core for loading (when using kernel
>>   * remoteproc loader), or by any rpmsg bus drivers.
>>   */
>> -static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>> +static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>  {
>>  	struct keystone_rproc *ksproc = rproc->priv;
>>  	void __iomem *va = NULL;
>> diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c
>> b/drivers/remoteproc/qcom_q6v5_adsp.c
>> index e953886b2eb7..7518e67a49e5 100644
>> --- a/drivers/remoteproc/qcom_q6v5_adsp.c
>> +++ b/drivers/remoteproc/qcom_q6v5_adsp.c
>> @@ -270,7 +270,7 @@ static int adsp_stop(struct rproc *rproc)
>>  	return ret;
>>  }
>>  
>> -static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
>> +static void *adsp_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>  {
>>  	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
>>  	int offset;
>> diff --git a/drivers/remoteproc/qcom_q6v5_mss.c
>> b/drivers/remoteproc/qcom_q6v5_mss.c
>> index 471128a2e723..248febde6fc1 100644
>> --- a/drivers/remoteproc/qcom_q6v5_mss.c
>> +++ b/drivers/remoteproc/qcom_q6v5_mss.c
>> @@ -1148,7 +1148,7 @@ static int q6v5_stop(struct rproc *rproc)
>>  	return 0;
>>  }
>>  
>> -static void *q6v5_da_to_va(struct rproc *rproc, u64 da, int len)
>> +static void *q6v5_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>  {
>>  	struct q6v5 *qproc = rproc->priv;
>>  	int offset;
>> diff --git a/drivers/remoteproc/qcom_q6v5_pas.c
>> b/drivers/remoteproc/qcom_q6v5_pas.c
>> index db4b3c4bacd7..cf2cd609c90d 100644
>> --- a/drivers/remoteproc/qcom_q6v5_pas.c
>> +++ b/drivers/remoteproc/qcom_q6v5_pas.c
>> @@ -159,7 +159,7 @@ static int adsp_stop(struct rproc *rproc)
>>  	return ret;
>>  }
>>  
>> -static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
>> +static void *adsp_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>  {
>>  	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
>>  	int offset;
>> diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c
>> b/drivers/remoteproc/qcom_q6v5_wcss.c
>> index f93e1e4a1cc0..3a6b82a16961 100644
>> --- a/drivers/remoteproc/qcom_q6v5_wcss.c
>> +++ b/drivers/remoteproc/qcom_q6v5_wcss.c
>> @@ -406,7 +406,7 @@ static int q6v5_wcss_stop(struct rproc *rproc)
>>  	return 0;
>>  }
>>  
>> -static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, int len)
>> +static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>  {
>>  	struct q6v5_wcss *wcss = rproc->priv;
>>  	int offset;
>> diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
>> index dc135754bb9c..f893219e45a8 100644
>> --- a/drivers/remoteproc/qcom_wcnss.c
>> +++ b/drivers/remoteproc/qcom_wcnss.c
>> @@ -287,7 +287,7 @@ static int wcnss_stop(struct rproc *rproc)
>>  	return ret;
>>  }
>>  
>> -static void *wcnss_da_to_va(struct rproc *rproc, u64 da, int len)
>> +static void *wcnss_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>  {
>>  	struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
>>  	int offset;
>> diff --git a/drivers/remoteproc/remoteproc_core.c
>> b/drivers/remoteproc/remoteproc_core.c
>> index 307df98347ba..9e6d3c6a60ee 100644
>> --- a/drivers/remoteproc/remoteproc_core.c
>> +++ b/drivers/remoteproc/remoteproc_core.c
>> @@ -185,7 +185,7 @@ EXPORT_SYMBOL(rproc_va_to_pa);
>>   * here the output of the DMA API for the carveouts, which should be more
>>   * correct.
>>   */
>> -void *rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>> +void *rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>  {
>>  	struct rproc_mem_entry *carveout;
>>  	void *ptr = NULL;
>> diff --git a/drivers/remoteproc/remoteproc_internal.h
>> b/drivers/remoteproc/remoteproc_internal.h
>> index 493ef9262411..004867061721 100644
>> --- a/drivers/remoteproc/remoteproc_internal.h
>> +++ b/drivers/remoteproc/remoteproc_internal.h
>> @@ -50,7 +50,7 @@ void rproc_exit_sysfs(void);
>>  void rproc_free_vring(struct rproc_vring *rvring);
>>  int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
>>  
>> -void *rproc_da_to_va(struct rproc *rproc, u64 da, int len);
>> +void *rproc_da_to_va(struct rproc *rproc, u64 da, u64 len);
>>  phys_addr_t rproc_va_to_pa(void *cpu_addr);
>>  int rproc_trigger_recovery(struct rproc *rproc);
>>  
>> diff --git a/drivers/remoteproc/st_slim_rproc.c
>> b/drivers/remoteproc/st_slim_rproc.c
>> index 04492fead3c8..2fd14afb3157 100644
>> --- a/drivers/remoteproc/st_slim_rproc.c
>> +++ b/drivers/remoteproc/st_slim_rproc.c
>> @@ -174,7 +174,7 @@ static int slim_rproc_stop(struct rproc *rproc)
>>  	return 0;
>>  }
>>  
>> -static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>> +static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>  {
>>  	struct st_slim_rproc *slim_rproc = rproc->priv;
>>  	void *va = NULL;
>> diff --git a/drivers/remoteproc/wkup_m3_rproc.c
>> b/drivers/remoteproc/wkup_m3_rproc.c
>> index 3984e585c847..0e8082948489 100644
>> --- a/drivers/remoteproc/wkup_m3_rproc.c
>> +++ b/drivers/remoteproc/wkup_m3_rproc.c
>> @@ -80,7 +80,7 @@ static int wkup_m3_rproc_stop(struct rproc *rproc)
>>  	return 0;
>>  }
>>  
>> -static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>> +static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>  {
>>  	struct wkup_m3_rproc *wkupm3 = rproc->priv;
>>  	void *va = NULL;
>> diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
>> index 16ad66683ad0..f84bd5fe0211 100644
>> --- a/include/linux/remoteproc.h
>> +++ b/include/linux/remoteproc.h
>> @@ -374,7 +374,7 @@ struct rproc_ops {
>>  	int (*start)(struct rproc *rproc);
>>  	int (*stop)(struct rproc *rproc);
>>  	void (*kick)(struct rproc *rproc, int vqid);
>> -	void * (*da_to_va)(struct rproc *rproc, u64 da, int len);
>> +	void * (*da_to_va)(struct rproc *rproc, u64 da, u64 len);
>>  	int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
>>  	int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc,
>>  			  int offset, int avail);
Arnaud POULIQUEN Feb. 4, 2020, 5:42 p.m. UTC | #3
On 2/4/20 6:10 PM, Clément Leger wrote:
> Hi Arnaud,
> 
> My bad, I thought it was only V1.
> I will resend it as a V3 with a cover letter.
> 
> ----- On 4 Feb, 2020, at 17:27, Arnaud Pouliquen arnaud.pouliquen@st.com wrote:
> 
>> Hi Clément,
>>
>> Is it v2 or V3?
>> I also suggest you add a cover letter when you post more than one patch in a
>> thread.
>>
>> On 2/4/20 3:33 PM, Clement Leger wrote:
>>> With upcoming changes in elf loader for elf64 support, section size will
>>> be a u64. When used with da_to_va, this will potentially lead to
>>> overflow if using the current "int" type for len argument. Change
>>> da_to_va prototype to use a u64 for len and fix all users of this
>>> function.
>>>
>>> Signed-off-by: Clement Leger <cleger@kalray.eu>
>>> ---
>>> V2:
>>>  - Change len type from int to u64
>>>
>>>  drivers/remoteproc/imx_rproc.c           | 5 +++--
>>>  drivers/remoteproc/keystone_remoteproc.c | 2 +-
>>>  drivers/remoteproc/qcom_q6v5_adsp.c      | 2 +-
>>>  drivers/remoteproc/qcom_q6v5_mss.c       | 2 +-
>>>  drivers/remoteproc/qcom_q6v5_pas.c       | 2 +-
>>>  drivers/remoteproc/qcom_q6v5_wcss.c      | 2 +-
>>>  drivers/remoteproc/qcom_wcnss.c          | 2 +-
>>>  drivers/remoteproc/remoteproc_core.c     | 2 +-
>>>  drivers/remoteproc/remoteproc_internal.h | 2 +-
>>>  drivers/remoteproc/st_slim_rproc.c       | 2 +-
>>>  drivers/remoteproc/wkup_m3_rproc.c       | 2 +-
>>>  include/linux/remoteproc.h               | 2 +-
>>>  12 files changed, 14 insertions(+), 13 deletions(-)
>>>
>>> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
>>> index 3e72b6f38d4b..7ec79be5eb5d 100644
>>> --- a/drivers/remoteproc/imx_rproc.c
>>> +++ b/drivers/remoteproc/imx_rproc.c
>>> @@ -208,7 +208,7 @@ static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64
>>> da,
>>>  	return -ENOENT;
>>>  }
>>>  
>>> -static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>> I wonder if you could use size_t instead?
> 
> I wondered too but size_t is a unsigned int on 32 bits system. So if they load
> a elf64 binary (which might be in 32bits zone), the segment size will be
> a u64 type.
If we consider that 32-bit processor can not address a memory space size higher than sizeof(size_t), this could be solved by adding a test and a cast.
> 
>> Does it make sense for 32-bit system to have a physical address space higher?
>> it's an open question I won't pretend to have the answer...:)
> 
> I agree that it does not make a lot of sense... But when we discussed it in
> OpenAMP WG, it was mentionned that this should be supported. 
My apologize, i don't remember the discussion around the size.
So if a requirement exists and size_t does not fit, let's use u64.
Nevertheless i'm interested to know the rational, if you remember...

Regards
Arnaud
> 
>>
>>
>>>  {
>>>  	struct imx_rproc *priv = rproc->priv;
>>>  	void *va = NULL;
>>> @@ -235,7 +235,8 @@ static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da,
>>> int len)
>> len type to update
> 
> I missed this one and I will double check all other callers
> 
> Thanks,
> 
> Clément. 
> 
>>
>> Regards,
>> Arnaud
>>>  		}
>>>  	}
>>>  
>>> -	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%x va = 0x%p\n", da, len, va);
>>> +	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%llx va = 0x%p\n", da, len,
>>> +		va);
>>>  
>>>  	return va;
>>>  }
>>> diff --git a/drivers/remoteproc/keystone_remoteproc.c
>>> b/drivers/remoteproc/keystone_remoteproc.c
>>> index 5c4658f00b3d..25c01df47eba 100644
>>> --- a/drivers/remoteproc/keystone_remoteproc.c
>>> +++ b/drivers/remoteproc/keystone_remoteproc.c
>>> @@ -246,7 +246,7 @@ static void keystone_rproc_kick(struct rproc *rproc, int
>>> vqid)
>>>   * can be used either by the remoteproc core for loading (when using kernel
>>>   * remoteproc loader), or by any rpmsg bus drivers.
>>>   */
>>> -static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>>  {
>>>  	struct keystone_rproc *ksproc = rproc->priv;
>>>  	void __iomem *va = NULL;
>>> diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c
>>> b/drivers/remoteproc/qcom_q6v5_adsp.c
>>> index e953886b2eb7..7518e67a49e5 100644
>>> --- a/drivers/remoteproc/qcom_q6v5_adsp.c
>>> +++ b/drivers/remoteproc/qcom_q6v5_adsp.c
>>> @@ -270,7 +270,7 @@ static int adsp_stop(struct rproc *rproc)
>>>  	return ret;
>>>  }
>>>  
>>> -static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +static void *adsp_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>>  {
>>>  	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
>>>  	int offset;
>>> diff --git a/drivers/remoteproc/qcom_q6v5_mss.c
>>> b/drivers/remoteproc/qcom_q6v5_mss.c
>>> index 471128a2e723..248febde6fc1 100644
>>> --- a/drivers/remoteproc/qcom_q6v5_mss.c
>>> +++ b/drivers/remoteproc/qcom_q6v5_mss.c
>>> @@ -1148,7 +1148,7 @@ static int q6v5_stop(struct rproc *rproc)
>>>  	return 0;
>>>  }
>>>  
>>> -static void *q6v5_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +static void *q6v5_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>>  {
>>>  	struct q6v5 *qproc = rproc->priv;
>>>  	int offset;
>>> diff --git a/drivers/remoteproc/qcom_q6v5_pas.c
>>> b/drivers/remoteproc/qcom_q6v5_pas.c
>>> index db4b3c4bacd7..cf2cd609c90d 100644
>>> --- a/drivers/remoteproc/qcom_q6v5_pas.c
>>> +++ b/drivers/remoteproc/qcom_q6v5_pas.c
>>> @@ -159,7 +159,7 @@ static int adsp_stop(struct rproc *rproc)
>>>  	return ret;
>>>  }
>>>  
>>> -static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +static void *adsp_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>>  {
>>>  	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
>>>  	int offset;
>>> diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c
>>> b/drivers/remoteproc/qcom_q6v5_wcss.c
>>> index f93e1e4a1cc0..3a6b82a16961 100644
>>> --- a/drivers/remoteproc/qcom_q6v5_wcss.c
>>> +++ b/drivers/remoteproc/qcom_q6v5_wcss.c
>>> @@ -406,7 +406,7 @@ static int q6v5_wcss_stop(struct rproc *rproc)
>>>  	return 0;
>>>  }
>>>  
>>> -static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>>  {
>>>  	struct q6v5_wcss *wcss = rproc->priv;
>>>  	int offset;
>>> diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
>>> index dc135754bb9c..f893219e45a8 100644
>>> --- a/drivers/remoteproc/qcom_wcnss.c
>>> +++ b/drivers/remoteproc/qcom_wcnss.c
>>> @@ -287,7 +287,7 @@ static int wcnss_stop(struct rproc *rproc)
>>>  	return ret;
>>>  }
>>>  
>>> -static void *wcnss_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +static void *wcnss_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>>  {
>>>  	struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
>>>  	int offset;
>>> diff --git a/drivers/remoteproc/remoteproc_core.c
>>> b/drivers/remoteproc/remoteproc_core.c
>>> index 307df98347ba..9e6d3c6a60ee 100644
>>> --- a/drivers/remoteproc/remoteproc_core.c
>>> +++ b/drivers/remoteproc/remoteproc_core.c
>>> @@ -185,7 +185,7 @@ EXPORT_SYMBOL(rproc_va_to_pa);
>>>   * here the output of the DMA API for the carveouts, which should be more
>>>   * correct.
>>>   */
>>> -void *rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +void *rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>>  {
>>>  	struct rproc_mem_entry *carveout;
>>>  	void *ptr = NULL;
>>> diff --git a/drivers/remoteproc/remoteproc_internal.h
>>> b/drivers/remoteproc/remoteproc_internal.h
>>> index 493ef9262411..004867061721 100644
>>> --- a/drivers/remoteproc/remoteproc_internal.h
>>> +++ b/drivers/remoteproc/remoteproc_internal.h
>>> @@ -50,7 +50,7 @@ void rproc_exit_sysfs(void);
>>>  void rproc_free_vring(struct rproc_vring *rvring);
>>>  int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
>>>  
>>> -void *rproc_da_to_va(struct rproc *rproc, u64 da, int len);
>>> +void *rproc_da_to_va(struct rproc *rproc, u64 da, u64 len);
>>>  phys_addr_t rproc_va_to_pa(void *cpu_addr);
>>>  int rproc_trigger_recovery(struct rproc *rproc);
>>>  
>>> diff --git a/drivers/remoteproc/st_slim_rproc.c
>>> b/drivers/remoteproc/st_slim_rproc.c
>>> index 04492fead3c8..2fd14afb3157 100644
>>> --- a/drivers/remoteproc/st_slim_rproc.c
>>> +++ b/drivers/remoteproc/st_slim_rproc.c
>>> @@ -174,7 +174,7 @@ static int slim_rproc_stop(struct rproc *rproc)
>>>  	return 0;
>>>  }
>>>  
>>> -static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>>  {
>>>  	struct st_slim_rproc *slim_rproc = rproc->priv;
>>>  	void *va = NULL;
>>> diff --git a/drivers/remoteproc/wkup_m3_rproc.c
>>> b/drivers/remoteproc/wkup_m3_rproc.c
>>> index 3984e585c847..0e8082948489 100644
>>> --- a/drivers/remoteproc/wkup_m3_rproc.c
>>> +++ b/drivers/remoteproc/wkup_m3_rproc.c
>>> @@ -80,7 +80,7 @@ static int wkup_m3_rproc_stop(struct rproc *rproc)
>>>  	return 0;
>>>  }
>>>  
>>> -static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
>>> +static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
>>>  {
>>>  	struct wkup_m3_rproc *wkupm3 = rproc->priv;
>>>  	void *va = NULL;
>>> diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
>>> index 16ad66683ad0..f84bd5fe0211 100644
>>> --- a/include/linux/remoteproc.h
>>> +++ b/include/linux/remoteproc.h
>>> @@ -374,7 +374,7 @@ struct rproc_ops {
>>>  	int (*start)(struct rproc *rproc);
>>>  	int (*stop)(struct rproc *rproc);
>>>  	void (*kick)(struct rproc *rproc, int vqid);
>>> -	void * (*da_to_va)(struct rproc *rproc, u64 da, int len);
>>> +	void * (*da_to_va)(struct rproc *rproc, u64 da, u64 len);
>>>  	int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
>>>  	int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc,
>>>  			  int offset, int avail);

Patch
diff mbox series

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 3e72b6f38d4b..7ec79be5eb5d 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -208,7 +208,7 @@  static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da,
 	return -ENOENT;
 }
 
-static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
+static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct imx_rproc *priv = rproc->priv;
 	void *va = NULL;
@@ -235,7 +235,8 @@  static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
 		}
 	}
 
-	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%x va = 0x%p\n", da, len, va);
+	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%llx va = 0x%p\n", da, len,
+		va);
 
 	return va;
 }
diff --git a/drivers/remoteproc/keystone_remoteproc.c b/drivers/remoteproc/keystone_remoteproc.c
index 5c4658f00b3d..25c01df47eba 100644
--- a/drivers/remoteproc/keystone_remoteproc.c
+++ b/drivers/remoteproc/keystone_remoteproc.c
@@ -246,7 +246,7 @@  static void keystone_rproc_kick(struct rproc *rproc, int vqid)
  * can be used either by the remoteproc core for loading (when using kernel
  * remoteproc loader), or by any rpmsg bus drivers.
  */
-static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
+static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct keystone_rproc *ksproc = rproc->priv;
 	void __iomem *va = NULL;
diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index e953886b2eb7..7518e67a49e5 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -270,7 +270,7 @@  static int adsp_stop(struct rproc *rproc)
 	return ret;
 }
 
-static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
+static void *adsp_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
 	int offset;
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 471128a2e723..248febde6fc1 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -1148,7 +1148,7 @@  static int q6v5_stop(struct rproc *rproc)
 	return 0;
 }
 
-static void *q6v5_da_to_va(struct rproc *rproc, u64 da, int len)
+static void *q6v5_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct q6v5 *qproc = rproc->priv;
 	int offset;
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index db4b3c4bacd7..cf2cd609c90d 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -159,7 +159,7 @@  static int adsp_stop(struct rproc *rproc)
 	return ret;
 }
 
-static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
+static void *adsp_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
 	int offset;
diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c
index f93e1e4a1cc0..3a6b82a16961 100644
--- a/drivers/remoteproc/qcom_q6v5_wcss.c
+++ b/drivers/remoteproc/qcom_q6v5_wcss.c
@@ -406,7 +406,7 @@  static int q6v5_wcss_stop(struct rproc *rproc)
 	return 0;
 }
 
-static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, int len)
+static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct q6v5_wcss *wcss = rproc->priv;
 	int offset;
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index dc135754bb9c..f893219e45a8 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -287,7 +287,7 @@  static int wcnss_stop(struct rproc *rproc)
 	return ret;
 }
 
-static void *wcnss_da_to_va(struct rproc *rproc, u64 da, int len)
+static void *wcnss_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
 	int offset;
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 307df98347ba..9e6d3c6a60ee 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -185,7 +185,7 @@  EXPORT_SYMBOL(rproc_va_to_pa);
  * here the output of the DMA API for the carveouts, which should be more
  * correct.
  */
-void *rproc_da_to_va(struct rproc *rproc, u64 da, int len)
+void *rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct rproc_mem_entry *carveout;
 	void *ptr = NULL;
diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
index 493ef9262411..004867061721 100644
--- a/drivers/remoteproc/remoteproc_internal.h
+++ b/drivers/remoteproc/remoteproc_internal.h
@@ -50,7 +50,7 @@  void rproc_exit_sysfs(void);
 void rproc_free_vring(struct rproc_vring *rvring);
 int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
 
-void *rproc_da_to_va(struct rproc *rproc, u64 da, int len);
+void *rproc_da_to_va(struct rproc *rproc, u64 da, u64 len);
 phys_addr_t rproc_va_to_pa(void *cpu_addr);
 int rproc_trigger_recovery(struct rproc *rproc);
 
diff --git a/drivers/remoteproc/st_slim_rproc.c b/drivers/remoteproc/st_slim_rproc.c
index 04492fead3c8..2fd14afb3157 100644
--- a/drivers/remoteproc/st_slim_rproc.c
+++ b/drivers/remoteproc/st_slim_rproc.c
@@ -174,7 +174,7 @@  static int slim_rproc_stop(struct rproc *rproc)
 	return 0;
 }
 
-static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
+static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct st_slim_rproc *slim_rproc = rproc->priv;
 	void *va = NULL;
diff --git a/drivers/remoteproc/wkup_m3_rproc.c b/drivers/remoteproc/wkup_m3_rproc.c
index 3984e585c847..0e8082948489 100644
--- a/drivers/remoteproc/wkup_m3_rproc.c
+++ b/drivers/remoteproc/wkup_m3_rproc.c
@@ -80,7 +80,7 @@  static int wkup_m3_rproc_stop(struct rproc *rproc)
 	return 0;
 }
 
-static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, int len)
+static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, u64 len)
 {
 	struct wkup_m3_rproc *wkupm3 = rproc->priv;
 	void *va = NULL;
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 16ad66683ad0..f84bd5fe0211 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -374,7 +374,7 @@  struct rproc_ops {
 	int (*start)(struct rproc *rproc);
 	int (*stop)(struct rproc *rproc);
 	void (*kick)(struct rproc *rproc, int vqid);
-	void * (*da_to_va)(struct rproc *rproc, u64 da, int len);
+	void * (*da_to_va)(struct rproc *rproc, u64 da, u64 len);
 	int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
 	int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc,
 			  int offset, int avail);